Stud-and-socket fastener.



G. AK MCCUNAK. STUD AND SOCKET FASTNEF. APPLICATION m50 um, w11.

12m-md July 1917 'd1rection"'at right Faving a convex head 7) and a shank .o .J-f ulrich it is adapted tobe secured tov the material B, tofwhich the material A, connected with the socket .menibe1, is to be -fastened. l f

At the base 'of the convex or approxin'mtc'ly' semi-spheric l head I) of the stud is a contracted vneck forming an annular shoulder lat the `base of the head b with ujhich the latch portion d ofithespringand the sockel member engages. i I Then "the stud is pressed into the aperture of tbc socket member theconrex lportion crowds the latch portion d" of the spring' outward until the entire conve); head has passed the said latch portion, when by .the spring action` lthe latch portion snaps inf ward at the neck of the stud as Shown` in Fig. l. and engages the shoulder at the base of 'the convex portion ot the. stud.

lVith the stud members thus elvigaged, the stud andsurrounding portion of the apertured socket serre to resist'strain in 'any direction in the plane of the fabric 'and the latch al also engages with the shoulder' in the stud solas positivclyto prerent disengagemcntby a direct :pull outward in. the

the fabric. p v .p.

Italso, psitively prevents .tilting `movement of either` fastener-member relative .to

the other. any direction. except: atilting There' vis thus Incrementi. outward inthe direction .of the arrows l3 sists outwardmovement i'nl that direction. no liability oithe parts be coming unfa stened in the conditions incident to use.

Them-however, is desired to idisengage the fastening to unfasten the members, a forcible outward `pressure or pull on the 4portion B'au'ay from 4the portion. .A :on the side opposite' tojthat where the stud-ais len-A by`the la-tch'po'rtion (Z, will causel Amember to turn in the' direction of .the Stud the aifroivfgzaboutthe latch portion fd. as aA ceter'or'axis, and it 'will bring the shoulder n* w d 'outta so as finally to disengraae'the' head 'portion of the stud movall Vfrom the socket.

to an inclinodlpositionin which it-fwillfact If the .stud member were fixedthe soclzet f be .correspondinglggf` disenl' member would Vcagedbylan outward pull onthe side from the Alatch portion d. member .turn about. the

away

Tofsgcure the desired thenv material angles to the plane'of ig. i,Y and a ylieidingiy re ging actionto ,crowd thedatch 'socket member. i a w. l [In testimony vWhereofhave`--hereutQ causing' the socketV l rein' resene'e oftWowlit-,

said.l latch portion i inthe direction of the arrow.' .cf Fig.` jj until the vdisengagement.was' eifetifve. f

results-'fthe Socket--' member. should bei applied itc in 'such position Messes:

that the sono@ all of* the material y when fastened should be to-l is located or in thc direction of the arrow 4 of Fig. 1. and the proper application is facilitated byhaing the aperture eccen- 'ricallyloc'atncd as shown.

The Socket-member is shown as attached to the fabricbjr the .prongs a* which are passed through the fabric and through aper clenched toendgage the said Washer as shownl in Figs. 1 an l By reason of4 thel construction Yinwhich thel spring vhas its abutment Iadjacent to the portion d* in engagement with .the abutment to the latch portion d in engagement with the stop. projections c?,

and in `the action of springingthe latch portion al outward from the aperture to permit the passage of thestud head -throngh- .the 'aperture' the"lnain body portion of the spring is drawnaway from the outer Wall ofthe spring hziinber instead'of beingr struction and its abutments the fastener.

arrangement of the spring and `Ward the side at which the latch portion dv ,tures in a Washer E and are'bent ldown and pressed toward it,\this coni being an important featureA of A stud'and socket fastener comprising a" studmember havin'g- 'aconvex headaznd any' annular shoulder Yat the base thereof; and al socket member .composed of a top plate@ haw ing an integral. flange fonn'ing 'a side wall, and -a bottom `plate secured Withinl "said flange, said top .and bottoml plates' being apertured and provided with a spring abut# ment and stops adjacent to'said aperture;

combined with a. spring. contained .in the chamber bel'wecn'saidi top and bottom plates,- portion lintending across the.. apertureiand engaging the stops-and it' and ha ving a latch spring portion' extqnding'- around` the mar#`- i ginalpart ofthe bring *chan'Il nber, andan abutment engagingl portion abutment adjacent to the positive 'lock thier- @fleeing the aperture; the' latch'. 'portion of the spring coperatirng;withthe,A Stud member" to aiford'a' and permitfits'reifor against direct withdrawal but servitnielsv i rclcked to' an inclined position tofefect fthe; fre' e aliked my signatu 

